Samsung Galaxy S21 vs OnePlus 9 Specs Comparison

Availability

Officially announced
Jan 14, 2021	Mar 23, 2021
MSRP
$ 800	$ 729

Design

Dimensions
5.97 x 2.80 x 0.31 inches 151.7 x 71.2 x 7.9 mm	6.30 x 2.92 x 0.34 inches 160 x 74.2 x 8.7 mm
Weight
6.03 oz (171.0 g)	6.77 oz (192.0 g)
Materials
Back: Plastic Frame: Aluminum	Back: Glass (Corning Gorilla Glass) Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint	2D Face unlock, Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key, Other
Colors
Phantom pink, Violet, Gray, White	Winter Mist, Arctic Sky, Astral Black

Display

Size
6.2-inch, 86.06% screen-to-body	6.5-inch, 87.27% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1300 nits	AMOLED, 120Hz, HDR
Resolution
2400x1080px, 20:9 ratio, 424 PPI	2400x1080px, 20:9 ratio, 402 PPI
Protection
Corning Gorilla Glass Victus	Corning Gorilla Glass

Hardware

System chip
Snapdragon 888 (5 nm)	Snapdragon 888 (5 nm)
Processor
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680	Octa-core 2840 MHz Kryo 680
GPU
Adreno 660	Adreno 660
Memory
8GB (LPDDR5)/128GB (UFS 3.0) 8GB/256GB	8GB (LPDDR5)/128GB (UFS 3.1) 12GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (13, 12, 11)	Android (11)

Battery

Type
4000 mAh, Li - Polymer	4500 mAh
Charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging	OnePlus Warp Charge Qi wireless charging
Charge speed
Wired: 25.0W Wireless: 15.0W	Wired: 65.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

4h 28min

Browsing

7h 47min

Video

7h 36min

Gaming

7h 9min

Battery Life Estimate

5h 50min

Browsing

11h 29min

Video

9h 16min

Gaming

9h 6min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Triple camera
Main camera
12 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.76" Pixel size: 1.8 μm	48 MP (PDAF) Aperture size: F1.8 Focal length: 23 mm Sensor size: 1/1.4" Pixel size: 1.12 μm
Second camera
12 MP (Ultra-wide, Autofocus) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	50 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 14 mm Sensor size: 1/1.56"
Third camera
64 MP (Telephoto, OIS, PDAF) Aperture size: F2.0 Focal Length: 29 mm Sensor size: 1/1.7" Pixel size: 0.8 μm	2 MP (Black and White)
Flash
LED	Dual LED
Video recording
8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS	8K UHD (30 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (480 fps) HDR, Continuous autofocus, EIS
Front
10 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	16 MP (EIS)

Connectivity & Features

Bluetooth
5.0	5.2
WLAN
a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.2	Type-C, USB 3.1
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	NFC

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Loudspeaker, Multiple speakers
Features
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus	Dolby Atmos
Screen mirroring
	Wireless screen share
Additional microphone(s)
	Noise cancellation

Cellular

5G
Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave	Bands n1, n2, n3, n5, n7, n8, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78
4G (FDD)
Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30(2300 WCS), 66(AWS-3), 71(600)	Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30(2300 WCS), 32(1500 L-band), 66(AWS-3), 71(600)
4G (TDD)
Bands 38, 39, 40, 41, 46, 48	Bands 38, 39, 40, 41, 46, 48
3G
Bands 1, 2, 4, 5, 8	Bands 1, 2, 4, 5, 8, 9, 19
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
SIM type
Nano SIM	Nano SIM

Regulatory Approval

FCC approval
Date approved: Dec 08, 2020 FCC ID value: A3LSMG991U	Date approved: Mar 24, 2021 FCC ID value: 2ABZ2-EF136
Measured SAR
Head: 0.36 W/kg Body: 1.08 W/kg Simultaneous Transmission: 3.96 W/kg Wireless Router: 1.09 W/kg Phablet: 2.49 W/kg	Head: 1.20 W/kg Body: 0.78 W/kg Simultaneous Transmission: 1.48 W/kg Wireless Router: 1.18 W/kg

Alternative variants

with 256GB storage

Memory	256GB

With 12GB RAM and 256GB storage

Memory	12GB/256GB
MSRP	$ 829

for Europe

System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 2900 MHz 1x2.91GHz Cortex-X1 3x2.81G​Hz Cortex-A78 4x2.2G​Hz Cortex-A55
GPU	Mali G78 MP14
Weight	5.96 oz (169.0 g)
5G	Bands SA, NSA, Sub-6
FCC approval	Date approved: Dec 18, 2020 FCC ID value: A3LSMG991B
Measured SAR	Head: 0.42 W/kg Body: 0.94 W/kg Simultaneous Transmission: 3.96 W/kg Wireless Router: 1.34 W/kg Phablet: 2.37 W/kg

Links

Full specifications
Samsung Galaxy S21 Specs	OnePlus 9 Specs
PhoneArena Review
Samsung Galaxy S21 Review	OnePlus 9 Review
User Reviews
Samsung Galaxy S21 User Reviews	OnePlus 9 User Reviews